Hose-coupling.



` kane,in the county of Spokane and State of UNITED STATES` PA'IENIQFEICE.

VIENS c. MARTIN, or sPoKANE, WASHING'ION.-

Hose-coutume.

SPECIFICATIO forming part of Letters Patent No. 653,143, dated July B.,1900. Applicatlonillsd November 8, 1899. Berill No. 738,232. (Nomodel.)4

To all whom it may concern:

Beit known that I, J ENS C. MARTIN, of Spo- Washington, have inventeda'new and useful Improvement in Hose-Couplings, of which the Ihosecouplings; and it 'is composed of two parts or sections adapted toengage and antolnatically lock together, but which may be easily andquickly disengaged when required.

- The said parts o'r sectonsare duplicates,

and each has a locking mechanism of peculiar construction and also anannular elastic gasket ,which is securely held in place by a peculiarconstruction and is adapted to be ,expanded by water-pressure, so as toform a perfectly-tight joint under all conditions.`

`The details of construction and combina tion of parts are hereinafterdescribed, reterence beinghad to. the accompanying drawin?, in" which-`igure l' is a plan or side view of my coupling in engaged position.Fig. 2 is a longitudinal section of the same. Fig. 3 is a -per spectiveview of the two coupling parts or sectionsV separated. Fig. 4 is adetail section showing the form and position of the gasket when' notsubjected to water-pressure. Fig.

5 is an enlarged detail section on line 5 5, Fig.

V2, showing the locking-latch. The two engaging parts orcoupling-sections A A areduplicates in every respect. The hose B isattached to each partA in a well-known manner and abuts an internalshoulder 14, which also serves as a seat for a rubber gasket C'.

As shown,y in Fig. 3, each coupling-section A has on one side twoundercut clutch members 2, consisting of segmental project-ionshavinginternal ribs or flanges 3. These clutch members 2 are separatedby a narrow space 4, which is adaptedto receive a boss 5 on the opposingpart of the other section A. Oneach side of 'said boss 5 are segmentalgrooves 6,

' which are adapted to lreceive ribs or anges lateral sliding engagementof the sections A A the boss 5 of each serves as aiguide, since if itdoes not directly enter space 4 between the Vclutch .members 2 itstrikes against oneof said members and slides along, the same until itreaches and passes into the space 4, and when 'once in place there itaids in preventing torsion or rotation of one section upon the other.

pressed down in the act of lengaging the sections A A, andthusfantomatically lock them together. It is apparent they can only beretracted by a pull applied manually. Thus the sections A A haveduplicate locking de- Each latch 7 is beveled to adapt it to be vices,by which'security is afforded, sinTce-if for any reason one lock failsto act the'other may be relied upon t'o perform its function etcie'ntly.

The aforesaid locking latches or catches proper, 7 ,.have slightlytapered and threaded shanks, (see Figs. Land 5,) which screw into broadmetal pieces 9,:having exterior recesses to adapt them for a securefinger-hold. These parts 9 are termed latch-pulls. They are adapted toslide freely in and protected by housingslOfformedp'n one side of eachcoupling-section A Aspiral spring 11- encircles the shanks of thelatchesor pins 7, and a' curved or segmental plate-spring 12 liesbetween .the said spiral spring. l1 and semicircular. heads of thelatch-,pulls 9. The housings 10 cover and protectthdlatches againstinjury by contact with other-*objects The relative. length orproportions of the latchpnlls'9 to the housings and the arrangement ofthe springs arev such that the pulls cannot'V be drawn-out so far as,toV expose their inner or semicircular ends, and hence dust, slush,&c., are prevented from entering, and thus from interfering with theproper' workings of the lock proper. The ends of said plate- IOO- nesame fsprlngs 12 are bent slightly outward and rest in lateral recessesin the-housing 10. Lateral holes lfharev provided at these points,through which a stout wire or other'suitable instru- I: ment may 'oeinserted for pressing upon the ends of the segmental spring 1i'. for thepurof removing the entire latch mechanism when required. h Y

Each coupling-section has an annular gasio ket C, formed of. rubber.which is but slightly I vulcanized, so as to have due elasticity. The

gaskets are held in-place by means of their eatturnededgeso-beingcompressed, and thusl iltted closely in a'dovetailgroove insections \.}"A'- (SeoFIgs.y 2 and 4) Oneside of such groove is4 formedof an annular rib 14, against which theiiose B abuts. The free outerends of-the gaskets C'are turned'overoutward, so

. as to yform a loop c', having a roundededgc,

zo and this' part isadapted to fit inv an annular' groove or socket15,'(see' Fig. 4,) formed in the surrounding portion of acoupling-section A.' As will be seen in Fig` 4, the outer edge cof agasket C projects .slightly beyond the z5 adjacent ythe purpose ofenabling such looped portions or edges c' of the gaskets to meet andclose up, so as to form a'water-tight joint when the two sections A Alarci 3b Fig. 2, land the'hose is filled with water. In

the act of engaging the' sections A A Iby the.

rotary'sliding movement required the meeting ofthe faces or enges c'tends to force the latter inward and avay from theseat 15, as 3.5 shownLFa', 4; but when subjected to waier-pressure such edges are compressein the annular seat or groove 15. This adaptability of the-free edges ofthe gaskets C to go back f into said sockets-lis an important one. The4o loop form of the gasket gives it a goed degrec of expansion, so thatit resists the waterpressure and is hns flattened, so as to make a-close join-t an at the same time oppose no serious obstruciionto thefree flow of water 45 "through the. hose.

It is'apparent that, since the parts or seo.

tions A A- are duplicates, there can never be a mist or failure tocouple two lengths of hose, as may occur in the case of' coupling- 5osections differing in construction.

, The coupling is 4particularly strong and se carefas relates to alongitudinal strain, and accidental lateral disconnection of thesecvtions is practically impossible.

,55v Having thus described my invention, what I claim, and desire tosecure by Letters Patent, is

1. In a hose-coupling, .the combination of the diplicatecoupling-sections, each having 6o engaging segmental flanges and groovesand provided with a space between-said anges, and a corresponding tenonor boss on the opposite sidefand m'eans for lockingthe secedge' of thesection A. This is forconnected, as shown inv tions when duly engaged,substantially as shown and described.

2. In a hose-coupling, the

combination, of

'the duplicate coupling-sections, each having two projecting segmentalclutch members whicli are separated by a space, and on the opposite sidetwo arc grooves and an intermediate boss, and sliduble spring-latchesfor automatically locking the sections together `when laterally engaged,substantially asl showrrand'desoribed'.

3. .In a liess-coupling, the combination of dsplicatecoupling.sentons,l1avingeogmental clutch members 2 and 3, which are separated asspecified, and au opposi boss, which, when the sections are engaged by asliding lateral movement, enters 'thc space ibetw'een said members, andthus serves' as a gnide3as shown and described.

4. In' a hose-coupling, the combination with couplingeections, of aslidable locking-latch, a spiral spring encircling the same, alingerpull forming a part of the latch' and a curved' platespringiuterposing said spiral spring and finger-pull, as show'n and described.

5. In a hose-coupling, the combination of a coupling-section providedwithga lateral housing having internal lateral recesses, aslidablelocking-latch composed of a pin and finger piece or pull, which parteare detachably connected, and a curvedor segmental springapplied betweensaid' pin and pull-piece, with ends vresting in said( recesses, v.asshown :and described.A q

6. AIn a hose-coupling, the combination of twv .sect ions adapted tobeengaged and locked together and each provided with an internalciovetailI socket or groove located adjacent to IOO the face, and twoannular gaskets 'which are held in the respective sockets-the interiorhollow portions of thc gaskets projecting circumferentially toward eachother so .that when the coupling is effected the gaskets-are in positionto be acted on by the pressure of water and to yield and flattenthereunder, as shown and described. y

7. In ahosecoupling,ihe combination,with sections adapted to be coupled,of two ex- IIO pansible gaskets formed of duly-elastic inal terial, thebases of said gaskets being inserted in grooves formed in the innersides of such coupling-sections, and their free edges being turnedoutward and then inward-upon them selvesand forming hollow rings orloops which project beyond the ends of thesections, and sockets formedin theinner portions of the sections,as shown anddescribed,whereby theentire inner sides of the loops present an unbroken and smooth surface,as specified.

J ENS C. MARTIN. i Witnesses:

P. C. SHINE, FRANK CLARK.

IZO

